Aqueous cross-linkable binder composition and coating, lacquer or sealing composition comprising such a binder composition

    公开(公告)号:US06509408B2

    公开(公告)日:2003-01-21

    申请号:US09861928

    申请日:2001-05-21

    IPC分类号: C08J300

    摘要: Aqueous-based cross-linkable binder composition comprising (A) an aqueous dispersion of a polyester-polyacrylate hybrid resin 50 to 90 wt. % of which is composed of polyester and 10 to 50 wt. % of which is composed of polyacrylate, which hybrid resin is obtainable by grafting a composition of radically polymerisable unsaturated monomers onto a partially unsaturated hydroxy-functional polyester resin, and (B) an organic polyisocyanate, wherein the partially unsaturated hydroxy-functional polyester is obtainable by reaction of a mixture of polycarboxylic and, optionally, monocarboxylic acids, and one or more (cyclo)aliphatic alcohols, wherein 0.5-6 mole % of the acids or alcohols are ethylenically unsaturated, and the composition of radically polymerisable unsaturated monomers comprises a mixture of hydrophobic and hydrophilic monomers, wherein (a) the hydrophobic monomers are selected from the group of aromatic vinyl compounds and (cyclo)alkyl(meth)acrylates with 4 or more carbon atoms in the (cyclo)alkyl group, and (b) the hydrophilic monomers are selected from the group of (meth)acrylic acid, (meth)acrylamide, (meth)acrylonitrile, optionally substituted; unsaturated monomers containing a sulphonic acid salt group; hydroxyalkyl(meth)acrylates; and, optionally, unsaturated monomers containing nonionic groups such as C1-C4 alkoxy polyalkylene oxide groups, wherein the molar ratio of unsaturated carboxylic acid groups to unsaturated sulphonic acid groups is between 1:1 and 4:1, the molar ratio of components (a) to components (b) is between 1:2 and 3:1, the COOH value is between 20 and 80, and the SO3H value is between 10 and 40, and the carboxylic acid groups are at least partly neutralised, a coating composition comprising such a binder composition, a process for the production of coating compositions consisting of said aqueous binder composition and, optionally, auxiliaries and additives known from lacquer technology, and a cross-linked coated substrate prepared by applying such a coating composition.

    Branched hydroxyl-functional polyester resin and its use in aqueous cross-linkable binder compositions
    2.
    发明授权
    Branched hydroxyl-functional polyester resin and its use in aqueous cross-linkable binder compositions 失效
    支链羟基官能聚酯树脂及其在水可交联粘合剂组合物中的应用

    公开(公告)号:US06562899B2

    公开(公告)日:2003-05-13

    申请号:US09839063

    申请日:2001-04-20

    IPC分类号: C08L7506

    摘要: Branched hydroxyl-functional polyester resin having an average hydroxyl functionality of >2, a hydroxyl number of 25 to 300 mg KOH/g, and a number average molecular weight within the range of from 500 to 3,000, which polyester resin comprises polyalkylene oxide groups and, optionally, sulphonate groups, wherein the polyester resin comprises the reaction product of 1) a mixture of carboxylic acids comprising 50 to 80 mole % of an m- and/or p-aromatic and/or cycloaliphatic dicarboxylic acid, 20 to 50 mole % of an aliphatic dicarboxylic acid and/or aliphatic monocarboxylic acid with more than 6 carbon atoms, and, optionally, a tri- or higher-functional acid, and 2) a mixture of alcohols comprising an aliphatic diol with at least 4 carbon atoms and/or a cycloaliphatic diol with at least 4 carbon atoms, a C1-C4 alkoxy polyalkylene oxide glycol and/or C1-C4 alkoxy polyalkylene oxide 1,3-diol having a number average molecular weight of 500 to 3,000, and, optionally, a tri- or higher-functional polyalcohol, wherein the polyester resin has a carboxylic acid number of ≦20 mg KOH/g (≦0.357 meq COOH groups per g of resin) and, optionally, a sulphonate number of ≦4 mg KOH/g (≦0.070 meq sulphonate groups per g of resin), the acid groups being at least partly neutralised.

    摘要翻译: 羟基官能度平均值> 2,羟基数为25〜300mg KOH / g,数均分子量为500〜3000的支链羟基官能聚酯树脂,该聚酯树脂含有聚环氧烷基, ,任选的磺酸酯基团,其中所述聚酯树脂包含以下的反应产物:1)包含50至80摩尔%的m-和/或p-芳族和/或脂环族二羧酸的羧酸混合物,20-50摩尔% 具有多于6个碳原子的脂族二羧酸和/或脂肪族单羧酸,以及任选的三官能或更高官能度的酸,和2)包含具有至少4个碳原子的脂族二醇和/或脂环族二醇的醇的混合物 具有至少4个碳原子的数均分子量为500至3,000的C 1 -C 4烷氧基聚环氧烷二醇和/或C 1 -C 4烷氧基聚环氧烷-1,3-二醇,以及任选的三或更高碳数, 功能性 其中聚酯树脂的羧酸数<20mg KOH / g(<= 0.357meq COOH基团/ g树脂)和任选的磺酸盐数<= 4mg KOH / g(<= 0.070meq 磺酸盐基团/ g树脂),酸基团至少部分被中和。